Rolling Stone: Among all the tests President Obama faced in his first term, his biggest failure was climate change. After promising in 2008 that his presidency would be "the moment when the rise of the oceans began to slow and our planet began to heal," President Obama went silent on the most crucial issue of our time. He failed to talk openly with Americans about the risks of continuing to pump greenhouse gases into the atmosphere, failed to put political muscle behind legislation to cap carbon pollution, failed...